#include<stdio.h>
int main()
{
    int n,m,i,j,count,flag,count1;
    double sum,avg,sum1,avg1,b[100];
    int a[100][100];//i&m  j&n
    while(scanf("%d%d",&n,&m)!=EOF)
    {
        sum=0;
        avg=0;
        flag=0;
        count1=0;
......................